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Build Your Own Forth Interpreter

https://codingchallenges.fyi/challenges/challenge-forth/
31•AlexeyBrin•3d ago

Comments

ithkuil•1h ago
"if you know one forth, you know one forth"
js8•57m ago
So implement four of them, and you will know them all! First Forth with indirect threaded code, second Forth with direct threaded code, third Forth with subroutine threaded code, and the final fourth with token threaded code.
AlexeyBrin•50m ago
I doubt you will want to code professionally in Forth unless you work on embedded, so the dialect you learn doesn't matter too much. But it is interesting to implement a small interpreter and play with it.
iberator•52m ago
This is a strange article imo.

I was expecting to see FORTH in bare metal C or ASM.

There is a common myth about newbie programmers that FORTH is write-only and that you need to type everything in one line, without comments or function calls etc.

Writing forth is super easy especially if you have a stack machine at your disposal. For example when you are building your own virtual cpu/architecture with assembler and compiler.

It's more trivial than to understand any JavaScript framework lol

Research FORTH more guys - it doesn't need to be strange and hard :)

ps. Lisp SUCKS

/rant

volemo•36m ago
I was with you 'till the last line. :P
spc476•39m ago
I've already done that---ANS Forth for the 6809 (https://github.com/spc476/ANS-Forth).
sophacles•14m ago
Advanced challenge: make it self-hosting.
dharmatech•27m ago
Video where I demonstrate how I explore JONESFORTH using GDB:

https://youtu.be/giLsd-bik6A?si=Gwm3NJdUzyrmmopH

Mac mini will be made at a new facility in Houston

https://www.apple.com/newsroom/2026/02/apple-accelerates-us-manufacturing-with-mac-mini-production/
139•haunter•1h ago•99 comments

Looks like it is happening

https://www.math.columbia.edu/~woit/wordpress/?p=15500
95•jjgreen•1h ago•53 comments

I'm helping my dog vibe code games

https://www.calebleak.com/posts/dog-game/
474•cleak•5h ago•143 comments

Hacking an old Kindle to display bus arrival times

https://www.mariannefeng.com/portfolio/kindle/
100•mengchengfeng•2h ago•19 comments

How we rebuilt Next.js with AI in one week

https://blog.cloudflare.com/vinext/
147•ghostwriternr•2h ago•26 comments

Nearby Glasses

https://github.com/yjeanrenaud/yj_nearbyglasses
167•zingerlio•4h ago•64 comments

Show HN: Emdash – Open-source agentic development environment

https://github.com/generalaction/emdash
66•onecommit•4h ago•31 comments

Hugging Face Skills

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106•armcat•4h ago•34 comments

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367•wordglyph•9h ago•141 comments

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https://distrowatch.com/dwres.php?resource=showheadline&story=20140
42•hexagonsuns•3h ago•15 comments

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https://pi.dev
10•kristianpaul•33m ago•1 comments

Build Your Own Forth Interpreter

https://codingchallenges.fyi/challenges/challenge-forth/
31•AlexeyBrin•3d ago•8 comments

Steel Bank Common Lisp

https://www.sbcl.org/
118•tosh•4h ago•34 comments

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https://www.nytimes.com/2026/02/24/business/irs-meta-corporate-taxes.html
168•mitchbob•9h ago•184 comments

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240•firefoxd•2d ago•102 comments

Verge (YC S15) Is Hiring a Director of Computational Biology and AI Scientists/Eng

https://jobs.ashbyhq.com/verge-genomics
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427•rossant•4d ago•93 comments

Variable interpolatable smooth curves and outlines

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22•MdSadiqMd•1d ago•2 comments

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https://www.amzi.com/articles/irq_expert_system.htm
55•Antibabelic•2d ago•17 comments

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312•kaplun•5h ago•250 comments

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358•anishathalye•1d ago•106 comments

λProlog: Logic programming in higher-order logic

https://www.lix.polytechnique.fr/Labo/Dale.Miller/lProlog/
134•ux266478•3d ago•35 comments

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188•thunderbong•5h ago•79 comments

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3•samrith•1h ago•0 comments

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316•todsacerdoti•9h ago•144 comments

OpenAI, the US government and Persona built an identity surveillance machine

https://vmfunc.re/blog/persona/
371•rzk•4h ago•117 comments